I got my piezos replaced about two weeks ago, and so far, my Variax 300 has been working fine. However, the other day, it suddenly stopped working. Today, I tested to see if it'd work again, and I found that it did, but only if it was lying down like a lap steel guitar. Is this likely to be an issue w/ the bridge, motherboard, or something else? And if I can't fix it right away, should I simply learn to play Hawaiian music for the time being?